/*
   Copyright (C) 2001-2006, William Joseph.
   All Rights Reserved.

   This file is part of GtkRadiant.

   GtkRadiant is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.

   GtkRadiant is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with GtkRadiant; if not, write to the Free Software
   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */

//
// writes xml tree format from internal objects
//

#include "xmlwrite.h"

#include "xml/xmlwriter.h"
#include "scenelib.h"
#include "entityxml.h"

inline XMLExporter* Node_getXMLExporter( scene::Node& node ){
	return NodeTypeCast<XMLExporter>::cast( node );
}


class write_all : public scene::Traversable::Walker
{
XMLImporter& m_importer;
public:
write_all( XMLImporter& importer ) : m_importer( importer ){
}
bool pre( scene::Node& node ) const {
	Entity* entity = Node_getEntity( node );
	if ( entity != 0 ) {
		m_importer.write( "\n", 1 );
		StaticElement element( "entity" );
		m_importer.pushElement( element );
		entity_export exporter( *entity );
		exporter.exportXML( m_importer );
	}
	else
	{
		XMLExporter* exporter = Node_getXMLExporter( node );
		if ( exporter != 0 ) {
			m_importer.write( "\n", 1 );
			exporter->exportXML( m_importer );
			m_importer.write( "\n", 1 );
		}
	}
	return true;
}
void post( scene::Node& node ) const {
	if ( Node_getEntity( node ) != 0 ) {
		m_importer.write( "\n", 1 );
		m_importer.popElement( "entity" );
	}
}
};

void Map_Write( scene::Node& root, GraphTraversalFunc traverse, TextOutputStream& out ){
	XMLStreamWriter writer( out );
	writer.write( "\n", 1 );
	{
		StaticElement element( "mapdoom3" );
		writer.pushElement( element );

		traverse( root, write_all( writer ) );

		writer.write( "\n", 1 );
		writer.popElement( element.name() );
	}
}